Well, I am VERY happy with my purchase.
Awesome bike, different to the MTB - but awesome!
Goes so much faster so much easier.
The road I normally can sit on ~30km/h I can now sit on around 40km/h+.
A hilly 11km ride that took me 45 mins last time I did it, only took 28 mins on the new bike (I'm a bit fitter since the last time also). I actually also rode the 11km home this time (that took a few mins longer, as it involved a bit more of a climb).
Anyway, I am thrilled. So glad I didn't get a hybrid like I was initially thinking of doing. The flat bar is very comfy, a few speed wobbles I'm still getting used to (more to do with my balance than anything else I guess). Have only got up to 50km/h on it down hills, but as I get used to it I'm sure that will change
So thanks again everyone. Not just for replies on this thread, but all the other threads on this forum - you're all a wealth of information and experiences.